sol_gel法制备表面改性纳米氧化锌.pdf
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10 Vol.24 No.10
第 期 电 子 元 件 与 材 料
2005 10 Oct. 2005
年 月 ELECTRONIC COMPONENTS MATERIALS
研究与试制
R D
sol-gel 法制备表面改性纳米氧化锌
刘桂香,徐光亮,罗庆平
(西南科技大学材料科学与工程学院,四川 绵阳 621010)
摘要: 采用 ) · O 和 NH · O 及合适的表面改性剂,通过 sol-gel 前驱体法,制备了高纯度的纳米 ZnO
Zn(NO3 2 6H2 3 H2
粉体。采用激光粒度分析、SEM、XRD 等手段,对所制备的粉体进行了表征。并研究了主盐浓度、反应温度、反应体
系的pH 值、表面改性剂等因素对 ZnO 晶体形成过程和显微结构的影响。结果表明:在Zn2+ 浓度为 0.1 mol/L、反应体
系温度为50℃、pH 值为 6.0 ,采用聚乙二醇(PEG-2000 )作为表面改性剂,将制得的前驱体在400 ℃分解 2 h ,获得了
纯度高、分散性好、结晶完整、粒度分布窄、粒状的纳米 ZnO 粉体。
关键词: 无机非金属材料;纳米氧化锌;sol-gel 法;表面改性
中图分类号: TB383 文献标识码:A 文章编号:1001-2028 (2005 )10-0036-03
Preparation of Surface Modified Nanometer Zinc Oxide by
Sol-gel Method
LIU Gui-xiang, XU Guang-liang, LUO Qing-ping
(College of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China)
Abstract: Using Zn(NO ) · O and NH · O as raw materials and suitable surfactant, nanometer ZnO powders were
3 2 6H2 3 H2
prepared by sol-gel precursor method. The powders were certified by means of SEM and XRD. And the influential parameters
such as Zn2+ concentration、temperature 、pH value and surfactant in reaction system were studied in detail. The results show that
the good dispersed、narrow distribution and highly pure nanocrystalline zinc oxide with grainy are obtained by co
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